Debian 3.9.10debian/3.9.10debian

1 files changed, 51 insertions, 0 deletions

diff --git a/src/pmdas/linux/sem_limits.c b/src/pmdas/linux/sem_limits.c
new file mode 100644
index 0000000..24e336e
--- /dev/null
+++ b/src/pmdas/linux/sem_limits.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2002
+ * This code contributed by Mike Mason <mmlnx@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#define __USE_GNU 1   /* required for IPC_INFO define */
+#include <sys/ipc.h>
+#include <sys/sem.h>
+
+#include "pmapi.h"
+#include "sem_limits.h"
+
+int
+refresh_sem_limits(sem_limits_t *sem_limits)
+{
+	static int started;
+	static struct seminfo seminfo;
+	static union semun arg;
+
+	if (!started) {
+		started = 1;
+		memset(sem_limits, 0, sizeof(sem_limits_t));
+		arg.array = (unsigned short *) &seminfo;
+	}
+
+	if (semctl(0, 0, IPC_INFO, arg) < 0) {
+		return -oserror();
+	}
+
+	sem_limits->semmap = seminfo.semmap;
+	sem_limits->semmni = seminfo.semmni;
+	sem_limits->semmns = seminfo.semmns;
+	sem_limits->semmnu = seminfo.semmnu;
+	sem_limits->semmsl = seminfo.semmsl;
+	sem_limits->semopm = seminfo.semopm;
+	sem_limits->semume = seminfo.semume;
+	sem_limits->semusz = seminfo.semusz;
+	sem_limits->semvmx = seminfo.semvmx;
+	sem_limits->semaem = seminfo.semaem;
+	return 0;
+}